Engine exhaust valve cooling

Details Engine exhaust valve cooling Engine exhaust valve cooling

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F02F 1/36 (2006.01) F01L 3/22 (2006.01) F01P 3/02 (2006.01) F01P 3/14 (2006.01)

Patent

CA 1066153

ENGINE EXHAUST VALVE COOLING ABSTRACT OF THE DISCLOSURE A cylinder head having an exhaust valve port comprising a throat defined by a wall of substantially circular cross section and a bevelled valve seat circumscrib- ing the wall. The bevelled valve seat has an axially extending annular portion adapted to be engaged by a valve head to close the port, the bevelled valve seat extending axially out- wardly from the axis of the throat at an angle to the wall. The improvement comprises the application of a small wall diverter within the exhaust port to force separation of the high temperature exhaust gas stream from the exhaust valve seat when the valve is open.

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